Electric wire and cable tensile strength automatic detection machine

Abstract

The invention relates to the field of material detection, and discloses an electric wire and cable tensile strength automatic detection machine which comprises a base, a guide groove is formed in the middle of the base, and a pushing mechanism is arranged in the middle of the guide groove. A first hydraulic rod is positively and negatively started, so that a movable seat controls the distance between two rotating mechanisms, then the pulling length of a first elastic piece is controlled through a first mounting shell, the wire winding force is changed, and after wire winding is finished, the wound wire is taken down from a first detection mechanism; the first hydraulic rod is installed in the middle of the second detection mechanism in the same step as the first detection mechanism, then the first hydraulic rod is started in the same way as the first detection mechanism in the forward direction, and the electric wires with different winding angles and different winding strengths are detected through the second detection mechanism. And when a plurality of electric wires are detected, batch repeated operation needs to be carried out.

Description

Technical Field

[0001] The present application relates to the technical field of material testing, and in particular to an automatic testing machine for the tensile strength of wires and cables. Background Art

[0002] In the production and quality inspection process of wires and cables, tensile strength is one of the important indicators to measure their mechanical properties.

[0003] Traditional tensile strength testing equipment can usually only test a single wire one by one, which is not only inefficient, but also difficult to intuitively compare the differences in tensile strength of wires made of different materials or with different processes. In particular, when it is necessary to evaluate the mechanical properties of multiple wires at the same time, existing equipment lacks effective synchronous detection and comparative analysis capabilities, resulting in long testing cycles, complex operations, and poor data comparability. In addition, although some testing devices have certain tensile testing functions, they are unable to achieve flexible adjustment of the wire winding angle and winding force. In actual use, wires often need to withstand complex stress conditions, including the combined effects of various forms such as stretching, bending, and torsion. A single tensile test method is difficult to fully reflect their true mechanical performance. More importantly, most existing testing equipment does not have an automatic winding function and cannot simulate the changes in the tensile properties of wires under different winding conditions, which limits the in-depth evaluation of the comprehensive performance of the wires. Summary of the Invention

[0004] The present application proposes an automatic tensile strength testing machine for wires and cables, which has the advantages of high detection efficiency and the ability to test wires in different states. It is used to solve the problem that existing wire tensile strength devices require batch repetitive operations when testing multiple wires.

[0005] To achieve the above objectives, the present application adopts the following technical solution: an automatic tensile strength testing machine for wires and cables, comprising: A base, wherein a guide groove is provided in the middle of the base; A pushing mechanism, the pushing mechanism being arranged in the middle of the guide groove; Two movable seats, the two movable seats are symmetrically slidably sleeved on the left and right sides of the guide groove, the front sides of the two movable seats are fixedly installed with driving members, and the output ends of the two driving members are fixedly installed with driving gears. If the above structure is in operation, it can drive the rotating mechanism to rotate; Two rotating mechanisms, the two rotating mechanisms are movably sleeved on the middle parts of the two movable seats respectively, and the two rotating mechanisms are symmetrically arranged; Two sleeve connection mechanisms, the two sleeve connection mechanisms are respectively arranged on one side adjacent to the two rotation mechanisms, and the two sleeve connection mechanisms are symmetrically arranged; A plurality of first detection mechanisms, each of which is equidistantly arranged on one side of the two rotating mechanisms close to the sleeve mechanism, and the first detection mechanisms on the left and right sides are symmetrically arranged; The two second detection mechanisms are respectively arranged in the middle of the two rotating mechanisms, and the two second detection mechanisms are symmetrically arranged.

[0006] Preferably, the pushing mechanism includes a mounting seat, which is fixedly sleeved in the middle of the guide groove. The first hydraulic rods are symmetrically fixedly installed on the left and right sides of the mounting seat, and the output ends of the two first hydraulic rods are respectively fixedly connected to the adjacent movable seats. The above structure can push the movable seat to move left and right when working.

[0007] Preferably, the rotating mechanism includes a mounting shaft, which is movably sleeved on the upper part of the movable seat, and the curved surface of the mounting shaft is fixedly sleeved with a passive gear, and a connecting plate is fixedly installed on the end of the passive gear away from the movable seat, and the passive gear is located between the mounting shaft and the connecting plate, and four limiting columns are symmetrically fixedly installed on one side of the connecting plate away from the mounting shaft, and the passive gear and the active gear are engaged with each other. The above structure can drive the first detection mechanism and the second detection mechanism to rotate when working.

[0008] Preferably, the sleeve connection mechanism includes two hydraulic seats, and the two hydraulic seats are fixedly sleeved on the upper part of the front side and the lower part of the rear side of the installation shaft respectively. The two hydraulic seats are fixedly installed with a second hydraulic rod on the side away from the movable seat, and the sides away from each other of the multiple limit columns are slidably sleeved with sleeve blocks. The telescopic end of the second hydraulic rod is fixedly connected to its adjacent sleeve block, and a pressure shaft is fixedly installed in the middle between the two adjacent sleeve blocks. The above structure can push the first detection mechanism to change the inclination angle when working.

[0009] Preferably, the first detection mechanism includes a first mounting shell, which is fixedly mounted on a side of the connecting plate away from the mounting axis, a first elastic member is fixedly mounted on the left side of the inner cavity of the first mounting shell, a first resistance rod is fixedly mounted on the middle part of the left side of the inner cavity of the first mounting shell, a first conductive plate is fixedly mounted on the right end of the first elastic member, the first resistance rod is slidably sleeved on the middle part of the first conductive plate, a first telescopic sleeve is fixedly mounted on the right side of the first conductive plate, the first telescopic sleeve is slidably sleeved on the middle part of the first mounting shell, the right side of the inner cavity of the first telescopic sleeve is threadedly connected with the first inner and outer screw sleeves, the right side of the inner cavity of the first inner and outer screw sleeves is slidably sleeved with the first ring sleeve, the left side of the inner cavity of the first inner and outer screw sleeves is threadedly connected with the first stud, and a cone block is fixedly mounted on the side of the first mounting shell away from the second detection mechanism. The above structure can detect multiple wires when working.

[0010] Preferably, the second detection mechanism includes a second mounting shell, which is fixedly mounted on the middle part of the connecting plate away from the mounting axis. A second elastic member is fixedly mounted on the left side of the inner cavity of the second mounting shell, a second resistance rod is fixedly mounted on the middle part of the left side of the inner cavity of the second mounting shell, a second conductive plate is fixedly mounted on the right end of the second elastic member, the second resistance rod is slidably sleeved on the middle part of the second conductive plate, a second telescopic sleeve is fixedly mounted on the right side of the second conductive plate, the second telescopic sleeve is slidably sleeved on the middle part of the second mounting shell, the right side of the inner cavity of the second telescopic sleeve is threadedly connected with the second inner and outer screw sleeves, the right side of the inner cavity of the second inner and outer screw sleeves is slidably sleeved with the second ring sleeve, and the left side of the inner cavity of the second ring sleeve is threadedly connected with the second stud. The above structure can detect multiple wound wires during operation.

[0011] Preferably, the hydraulic seat, the second hydraulic rod, the sleeve block and the pressure shaft are all symmetrically arranged, and the pressure shaft is made of hard material.

[0012] Preferably, an existing resistance detection circuit is provided between one end of the first resistance rod and one side of the first conductive plate, and the contact surface between the first telescopic sleeve and the first mounting shell is a smooth surface.

[0013] Preferably, a side surface of the first stud adjacent to the first ring sleeve is provided with a rough coating, and the first elastic member, the first telescopic sleeve and the first stud are all made of insulating material.

[0014] Preferably, the elastic force of the second elastic member is greater than twice the sum of the elastic forces of the four first elastic members, an existing resistance detection circuit is provided between one end of the second resistance rod and one side of the second conductive plate, and the second mounting shell, the second elastic member, the second telescopic sleeve and the second stud are all made of insulating material.

[0015] The beneficial effects of the present invention are as follows: 1. In the present invention, when the pushing mechanism drives the rotating mechanism to move toward the side away from the mounting seat through the movable seat, since the length of the wire clamped between the two first detection mechanisms remains unchanged, the rotating mechanism drives the first mounting shell to move toward one end away from the mounting seat, and the first mounting shell pulls the first elastic member to extend. The first resistance rod slides along the middle of the first conductive plate, and the tension at both ends of the wire increases. The resistance between one side of the first resistance rod and one end of the first conductive plate changes until the wire breaks. At this time, the stretched length of the first elastic member is inferred by the resistance between one side of the first resistance rod and one end of the first conductive plate, and then the tension at both ends of the wire when it breaks is inferred by the stretched length of the first elastic member, thereby achieving the purpose of detecting the wire. In the present invention, the wire strength is detected. In addition, when the rotating mechanism moves to the side away from the mounting seat, the multiple first mounting shells only pull the first elastic members fixedly connected thereto to extend, and the pulling force of each first detection mechanism on the wire is only related to the stretched length of the first elastic member inside it, so that the multiple first detection mechanisms do not interfere with each other, thereby realizing the simultaneous detection of multiple wires of different materials or different processes. By directly observing the order in which the multiple wires are broken, the tensile strength of the wires of different materials and different processes can be directly and quickly judged, and the wire with the highest tensile strength can be quickly selected, thereby overcoming the problem that the wire tensile strength device needs to perform batch repeated operations when detecting multiple wires.

[0016] 2. According to the present invention, after the two ends of multiple wires are fixedly connected to the middle parts of the first detection mechanisms on the left and right sides, the movable seats on the left and right sides are started forward and reversely, and the movable seats on the left and right sides drive the rotating mechanisms on the left and right sides to rotate in opposite directions. The rotating mechanisms rotating in opposite directions on the left and right sides drive multiple first detection mechanisms on the left and right sides to rotate in opposite directions. The multiple first detection mechanisms on the left and right sides drive multiple wires to entangle with each other. At this time, when the telescopic end of the second hydraulic rod contracts, the sleeve mechanism pushes the end of the first detection mechanism away from the mounting seat to rotate downward, and the end of the first detection mechanism close to the mounting seat moves upward, thereby increasing the winding angle of the wires. Conversely, when the telescopic end of the second hydraulic rod is extended, the end of the first detection mechanism close to the mounting seat moves downward. The wire winding angle is reduced, and the first hydraulic rod is started in the forward and reverse directions at the same time. The distance between the two rotating mechanisms is controlled by the movable seat, and then the pulling length of the first elastic member is controlled by the first mounting shell to change the winding force of the wire. When the wire winding is completed, the wound wire is removed from the first detection mechanism and installed to the middle part of the second detection mechanism in the same steps as installing the first detection mechanism. Then, the first hydraulic rod is started in the forward direction in the same way as the first detection mechanism, and the wires with different winding angles and different winding forces are tested through the second detection mechanism. This overcomes the problem that most detection equipment does not have an automatic winding function and cannot simulate the changes in the tensile performance of the wire under different winding states, which limits the in-depth evaluation of the comprehensive performance of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application in a clear and understandable manner.

[0018] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the rotating mechanism structure of the present invention; Figure 3 This is a schematic structural diagram of the sleeve mechanism of the present invention; Figure 4 Schematic diagram of the limiting column structure of the present invention; Figure 5 This is a structural diagram of the first detection mechanism of the present invention; Figure 6 This is a schematic structural diagram of the second detection mechanism of the present invention.

[0019] Wherein: 1. Base; 101. Guide groove; 2. Push mechanism; 201. Mounting seat; 202. First hydraulic rod; 3. Movable seat; 301. Driving member; 302. Active gear; 4. Rotating mechanism; 401. Mounting shaft; 402. Passive gear; 403. Connecting plate; 404. Limiting column; 5. Socket mechanism; 501. Hydraulic seat; 502. Second hydraulic rod; 503. Bushing block; 504. Pressing shaft; 6. First detection mechanism; 601. First mounting shell; 6 02, first elastic member; 603, first resistance rod; 604, first conductive plate; 605, first telescopic sleeve; 606, first inner and outer threaded sleeves; 607, first ring sleeve; 608, first stud; 609, cone block; 7, second detection mechanism; 701, second mounting shell; 702, second elastic member; 703, second resistance rod; 704, second conductive plate; 705, second telescopic sleeve; 706, second inner and outer threaded sleeves; 707, second ring sleeve; 708, second stud. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] See also Figures 1 to 6 As shown, an automatic tensile strength testing machine for wires and cables comprises: Base 1, a guide groove 101 is opened in the middle of the base 1; The pushing mechanism 2 is arranged in the middle of the guide groove 101; Two movable seats 3 are symmetrically slidably sleeved on the left and right sides of the guide groove 101. The front sides of the two movable seats 3 are fixedly mounted with driving members 301. The output ends of the two driving members 301 are fixedly mounted with driving gears 302. Among them, the contact surfaces between the movable seat 3 and the guide groove 101 are all smooth surfaces, thereby reducing the friction resistance between the movable seat 3 and the guide groove 101 used to support the bearing rotation mechanism 4, the socket mechanism 5, multiple first detection mechanisms 6 and the second detection mechanism 7, and reducing the load driven by the first hydraulic rod 202 to move the movable seat 3.

[0022] Two rotating mechanisms 4, the two rotating mechanisms 4 are movably sleeved on the middle parts of the two movable seats 3, and the two rotating mechanisms 4 are symmetrically arranged; Two sleeve connection mechanisms 5, the two sleeve connection mechanisms 5 are respectively arranged on one side adjacent to the two rotation mechanisms 4, and the two sleeve connection mechanisms 5 are symmetrically arranged; A plurality of first detection mechanisms 6 are equidistantly arranged on one side of the two rotating mechanisms 4 close to the sleeve mechanism 5, and the first detection mechanisms 6 on the left and right sides are symmetrically arranged; The two second detection mechanisms 7 are respectively arranged in the middle of the two rotating mechanisms 4, and the two second detection mechanisms 7 are symmetrically arranged.

[0023] See also Figure 1 and Figure 6 As shown, the pushing mechanism 2 includes a mounting base 201, which is fixedly sleeved in the middle of the guide groove 101. First hydraulic rods 202 are symmetrically fixedly mounted on the left and right sides of the mounting base 201. The output ends of the two first hydraulic rods 202 are respectively fixedly connected to their adjacent movable seats 3. Among them, the models of the two first hydraulic rods 202 remain the same, and the telescopic ends of the two first hydraulic rods 202 maintain synchronous contraction and extension, thereby ensuring that the left and right movable seats 3 move synchronously toward or away from the side of the mounting seat 201, so that the two movable seats 3 do not disengage from the guide groove 101 while increasing the maximum distance between the two movable seats 3, increasing the stretchable length of the first elastic member 602 and the second elastic member 702 in the middle of the first detection mechanism 6 and the second detection mechanism 7, and increasing the upper limit of cable strength detection.

[0024] See also Figure 1 、 Figure 2 and Figure 4As shown, the rotating mechanism 4 includes a mounting shaft 401, which is movably sleeved on the upper part of the movable seat 3. A passive gear 402 is fixedly sleeved on the curved surface of the mounting shaft 401. A connecting plate 403 is fixedly installed on the end of the passive gear 402 away from the movable seat 3. The passive gear 402 is located between the mounting shaft 401 and the connecting plate 403. Four limiting columns 404 are symmetrically fixedly installed on one side of the connecting plate 403 away from the mounting shaft 401. The passive gear 402 is meshed with the driving gear 302. The contact surface between the mounting shaft 401 and the movable seat 3 is a smooth surface, thereby reducing the friction resistance between the mounting shaft 401 and the movable seat 3, and further reducing the load generated by the friction between the driven gear 402 and the movable seat 3 when the driving gear 302 drives the rotating mechanism 4 to rotate.

[0025] See also Figure 1 、 Figure 4 and Figure 5 As shown, the sleeve mechanism 5 includes two hydraulic seats 501, which are respectively fixedly sleeved on the upper part of the front side and the lower part of the rear side of the installation shaft 401. A second hydraulic rod 502 is fixedly installed on the side of the two hydraulic seats 501 away from the movable seat 3, and a sleeve block 503 is slidably sleeved on the side away from the multiple limit columns 404. The telescopic end of the second hydraulic rod 502 is fixedly connected to its adjacent sleeve block 503, and a pressing shaft 504 is fixedly installed in the middle between the two adjacent sleeve blocks 503. Among them, the hydraulic seat 501, the second hydraulic rod 502, the sleeve block 503 and the pressure shaft 504 are all symmetrically arranged, so that the pulling force and the thrust at the telescopic ends of the two second hydraulic rods 502 remain the same, thereby improving the force balance performance between the multiple sleeve blocks 503 and the pressure shaft 504. The pressure shaft 504 is made of hard material and the pressure shaft 504 is made of high carbon steel, so as to avoid breakage or severe wear when the pressure shaft 504 squeezes the cone block 609 and tilts, and at the same time improve the connection strength between the multiple sleeve blocks 503.

[0026] See also Figure 1 and Figure 5As shown, the first detection mechanism 6 includes a first mounting shell 601, which is fixedly mounted on a side of the connecting plate 403 away from the mounting shaft 401, a first elastic member 602 is fixedly mounted on the left side of the inner cavity of the first mounting shell 601, a first resistance rod 603 is fixedly mounted on the middle part of the left side of the inner cavity of the first mounting shell 601, a first conductive plate 604 is fixedly mounted on the right end of the first elastic member 602, the first resistance rod 603 is slidably sleeved on the middle part of the first conductive plate 604, a first telescopic sleeve 605 is fixedly mounted on the right side of the first conductive plate 604, the first telescopic sleeve 605 is slidably sleeved on the middle part of the first mounting shell 601, the right side of the inner cavity of the first telescopic sleeve 605 is threadedly connected to the first inner and outer screw sleeves 606, the right side of the inner cavity of the first inner and outer screw sleeves 606 is slidably sleeved with a first ring sleeve 607, the left side of the inner cavity of the first inner and outer screw sleeves 606 is threadedly connected to the first stud 608, and a cone block 609 is fixedly mounted on the side of the first mounting shell 601 away from the second detection mechanism 7; Among them, an existing resistance detection circuit is provided between one end of the first resistance rod 603 and one side of the first conductive plate 604. The resistance detection circuit is mainly composed of a power supply, a resistor, an ammeter and a plurality of wires, and is used to detect the resistance change between the first resistance rod 603 and the first conductive plate 604 and the second resistance rod 703 and the second conductive plate 704. When in use, the elongated length of the first elastic member 602 is measured by the change in resistance between the first resistance rod 603 and the first conductive plate 604. The contact surface between the first telescopic sleeve 605 and the first mounting shell 601 is a smooth surface, thereby reducing the friction between the first telescopic sleeve 605 and the first elastic member 602 when the first telescopic sleeve 605 pulls the first elastic member 602 to extend. Friction resistance, improves the accuracy of the first telescopic sleeve 605 pulling the first resistance rod 603 to extend, and improves the accuracy of subsequent detection of the tensile strength of the wire. A rough coating is provided on the side of the first stud 608 adjacent to the first ring sleeve 607, thereby increasing the friction resistance when the first stud 608 and the first ring sleeve 607 clamp one end of the wire, thereby preventing the wire from loosening. The first mounting shell 601, the first elastic member 602, the first telescopic sleeve 605 and the first stud 608 are all made of insulating material, and the first mounting shell 601, the first elastic member 602, the first telescopic sleeve 605 and the first stud 608 are all made of plastic, thereby avoiding a short circuit between the energized first resistance rod 603 and the first conductive plate 604.

[0027] See also Figure 1 、 Figure 2 and Figure 6As shown, the second detection mechanism 7 includes a second mounting shell 701, which is fixedly mounted on the middle part of the connecting plate 403 away from the mounting shaft 401. A second elastic member 702 is fixedly mounted on the left side of the inner cavity of the second mounting shell 701, and a second resistance rod 703 is fixedly mounted on the middle part of the left side of the inner cavity of the second mounting shell 701. A second conductive plate 704 is fixedly mounted on the right end of the second elastic member 702. The second resistance rod 703 is slidably sleeved on the middle part of the second conductive plate 704. A second telescopic sleeve 705 is fixedly mounted on the right side of the second conductive plate 704. The second telescopic sleeve 705 is slidably sleeved on the middle part of the second mounting shell 701. The right side of the inner cavity of the second telescopic sleeve 705 is threadedly connected to the second inner and outer screw sleeves 706. The right side of the inner cavity of the second inner and outer screw sleeves 706 is slidably sleeved with a second ring sleeve 707. The left side of the inner cavity of the second ring sleeve 707 is threadedly connected to the second stud 708. Among them, the elastic force of the second elastic member 702 is greater than twice the sum of the elastic forces of the four first elastic members 602, so that the second elastic member 702 inside the second detection mechanism 7 can effectively withstand the strength test of the four wound wires. Similarly, an existing resistance detection circuit is provided between one end of the second resistance rod 703 and one side of the second conductive plate 704. When in use, the stretched length of the second elastic member 702 is measured by the change in resistance between the second resistance rod 703 and the second conductive plate 704. The contact surface between the second telescopic sleeve 705 and the second mounting shell 701 is a smooth surface, thereby reducing the gap between the second telescopic sleeve 705 and the second elastic member 702 when the second telescopic sleeve 705 pulls the second elastic member 702 to stretch. Friction resistance improves the accuracy of the second telescopic sleeve 705 in pulling the second resistance rod 703 to extend, and improves the accuracy of subsequent detection of the tensile strength of the wire. A rough coating is provided on the side of the second stud 708 adjacent to the second ring sleeve 707, thereby increasing the friction resistance when the second stud 708 and the second ring sleeve 707 clamp one end of the wire to prevent the wire from loosening. The second mounting shell 701, the second elastic member 702, the second telescopic sleeve 705 and the second stud 708 are all made of insulating material, and the second mounting shell 701, the second elastic member 702, the second telescopic sleeve 705 and the second stud 708 are all made of plastic, thereby preventing a short circuit between the energized second resistance rod 703 and the second conductive plate 704.

[0028] Working principle: When the present invention is used, first rotate the first inner and outer screw sleeves 606 in the opposite direction to take out the first inner and outer screw sleeves 606, the first ring sleeve 607 and the first ring sleeve 607 from the inner cavity of the first telescopic sleeve 605, then rotate the first stud 608 in the opposite direction to take out the first stud 608 from the inner cavity of the first inner and outer screw sleeves 606, and then pass one end of the wire through the middle of the first ring sleeve 607 from the hole at one end of the first stud 608, and then rotate the first stud 608 forward to reinstall the first stud 608 into the inner cavity of the first inner and outer screw sleeves 606. At this time, the first stud 608 squeezes the end of the wire passing through the middle of the first ring sleeve 607, and then rotate the first inner and outer screw sleeves 606 forward to reinstall the first inner and outer screw sleeves 606 into the inner cavity of the first telescopic sleeve 605. Similarly, after fixing the two ends of the multiple wires to the middle of the first detection mechanisms 6 on the left and right sides; The first hydraulic rod 202 is started forward, and the telescopic end of the first hydraulic rod 202 extends. The first hydraulic rod 202 pushes the movable seat 3 fixedly connected thereto to move toward the end away from the mounting seat 201. The movable seat 3 drives the rotating mechanism 4 movably connected thereto to move toward the side away from the mounting seat 201. At this time, since the length of the wire clamped between the two first detection mechanisms 6 remains unchanged, the position of the entire body formed by the threaded connection or fixed connection between the first conductive plate 604, the first telescopic sleeve 605, the first inner and outer screw sleeves 606, the first ring sleeve 607, the first stud 608 and the wire remains unchanged relative to the base 1; When the two rotating mechanisms 4 move toward the side away from the mounting base 201, the rotating mechanism 4 drives the first mounting shell 601 to move toward the end away from the mounting base 201, and the first mounting shell 601 pulls the first elastic member 602 to extend, and the first resistance rod 603 slides along the middle of the first conductive plate 604. At this time, the tension at both ends of the wire increases, and the resistance between one side of the first resistance rod 603 and one end of the first conductive plate 604 changes until the wire breaks. At this time, the stretched length of the first elastic member 602 is inferred by the resistance between one side of the first resistance rod 603 and one end of the first conductive plate 604, and then the stretched length of the first elastic member 602 is inferred. When the wire breaks, the tension at both ends is measured, thereby realizing the detection of the wire strength. In addition, when the rotating mechanism 4 moves to the side away from the mounting base 201, the multiple first mounting shells 601 only pull the first elastic member 602 fixedly connected thereto to extend, and the tension of each first detection mechanism 6 on the wire is only related to the stretched length of the first elastic member 602 inside it, so that the multiple first detection mechanisms 6 do not interfere with each other, thereby realizing the simultaneous detection of multiple wires of different materials or different processes. By directly observing the order in which multiple wires break, the tensile strength of wires of different materials and different processes can be directly and quickly determined, and the wire with the highest tensile strength can be quickly selected. In addition, according to the present invention, after the two ends of multiple wires are fixedly connected to the middle parts of the first detection mechanisms 6 on the left and right sides, the left driving member 301 is started in the forward direction and the right driving member 301 is started in the reverse direction. At this time, the output end of the left driving member 301 drives the passive gear 402 on the left side to rotate forward through the active gear 302 fixedly connected thereto, and the passive gear 402 on the left side drives the left rotating mechanism 4 to rotate forward, and the output end of the right driving member 301 drives the passive gear 402 on the right side to rotate forward through the active gear 302 fixedly connected thereto, and the passive gear 402 on the right side drives the right rotating mechanism 4 to rotate forward. At this time, the rotating mechanisms 4 rotating in opposite directions on the left and right sides drive the multiple first detection mechanisms 6 on the left and right sides to rotate in opposite directions, and the multiple first detection mechanisms 6 on the left and right sides drive the multiple wires to entangle with each other. At this time, when the telescopic end of the second hydraulic rod 502 contracts, the second The telescopic end of the hydraulic rod 502 pulls the pressing shaft 504 to move to the side away from the mounting seat 201 through the sleeve block 503. At this time, the pressing shaft 504 presses the side of the cone block 609 away from the mounting seat 201 to move downward, and the cone block 609 pushes the end of the first mounting shell 601 away from the mounting seat 201 to rotate downward. At this time, the end of the first detection mechanism 6 away from the mounting seat 201 rotates downward, and the end of the first detection mechanism 6 close to the mounting seat 201 moves upward, thereby increasing the winding angle of the wire. Conversely, when the telescopic end of the second hydraulic rod 502 is extended, the end of the first detection mechanism 6 close to the mounting seat 201 moves downward, reducing the winding angle of the wire. At the same time, by starting the first hydraulic rod 202 forward and backward, the distance between the two rotating mechanisms 4 is controlled by the movable seat 3, and then the pulling length of the first elastic member 602 is controlled through the first mounting shell 601 to change the winding force of the wire. When the wire winding is completed, the wound wire is removed from the first detection mechanism 6 and installed to the middle part of the second detection mechanism 7 in the same steps as the installation of the first detection mechanism 6. Then, the first hydraulic rod 202 is started in the forward direction in the same way as the first detection mechanism 6, and the wires with different winding angles and different winding forces are detected through the second detection mechanism 7.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic tensile strength testing machine for wires and cables, characterized in that: include: A base (1), wherein a guide groove (101) is provided in the middle of the base (1); A pushing mechanism (2), the pushing mechanism (2) being arranged in the middle of the guide groove (101); Two movable seats (3), the two movable seats (3) are symmetrically slidably sleeved on the left and right sides of the guide groove (101), the front sides of the two movable seats (3) are fixedly mounted with driving members (301), and the output ends of the two driving members (301) are fixedly mounted with driving gears (302); Two rotating mechanisms (4), the two rotating mechanisms (4) are movably sleeved on the middle parts of the two movable seats (3), and the two rotating mechanisms (4) are symmetrically arranged; Two sleeve connection mechanisms (5), the two sleeve connection mechanisms (5) are respectively arranged on one side adjacent to the two rotation mechanisms (4), and the two sleeve connection mechanisms (5) are symmetrically arranged; A plurality of first detection mechanisms (6), wherein the plurality of first detection mechanisms (6) are respectively arranged at equal distances on one side of the two rotating mechanisms (4) close to the sleeve mechanism (5), and the first detection mechanisms (6) on the left and right sides are symmetrically arranged; Two second detection mechanisms (7), the two second detection mechanisms (7) are respectively arranged in the middle of the two rotation mechanisms (4), and the two second detection mechanisms (7) are symmetrically arranged.

2. The automatic tensile strength testing machine for wires and cables according to claim 1, characterized in that: The pushing mechanism (2) comprises a mounting seat (201), the mounting seat (201) being fixedly sleeved in the middle of the guide groove (101), and first hydraulic rods (202) being symmetrically fixedly mounted on the left and right sides of the mounting seat (201), and the output ends of the two first hydraulic rods (202) are respectively fixedly connected to the adjacent movable seats (3).

3. The automatic tensile strength testing machine for wires and cables according to claim 2, characterized in that: The rotating mechanism (4) comprises a mounting shaft (401), the mounting shaft (401) being movably sleeved on the upper portion of the movable seat (3), a passive gear (402) being fixedly sleeved on the curved surface of the mounting shaft (401), a connecting plate (403) being fixedly mounted on one end of the passive gear (402) away from the movable seat (3), the passive gear (402) being located between the mounting shaft (401) and the connecting plate (403), four limiting columns (404) being symmetrically fixedly mounted on one side of the connecting plate (403) away from the mounting shaft (401), and the passive gear (402) and the driving gear (302) being meshed with each other.

4. The automatic tensile strength testing machine for wires and cables according to claim 3, characterized in that: The sleeve mechanism (5) includes two hydraulic seats (501), and the two hydraulic seats (501) are fixedly sleeved on the upper part of the front side and the lower part of the rear side of the installation shaft (401), respectively. A second hydraulic rod (502) is fixedly installed on the side of the two hydraulic seats (501) away from the movable seat (3), and a sleeve block (503) is slidably sleeved on the side away from the plurality of limit columns (404). The telescopic end of the second hydraulic rod (502) is fixedly connected to its adjacent sleeve block (503), and a pressure shaft (504) is fixedly installed in the middle between the two adjacent sleeve blocks (503).

5. The automatic tensile strength testing machine for electric wires and cables according to claim 4, characterized in that: The first detection mechanism (6) includes a first mounting shell (601), the first mounting shell (601) is fixedly mounted on a side of the connecting plate (403) away from the mounting shaft (401), a first elastic member (602) is fixedly mounted on the left side of the inner cavity of the first mounting shell (601), a first resistance rod (603) is fixedly mounted in the middle of the left side of the inner cavity of the first mounting shell (601), a first conductive plate (604) is fixedly mounted on the right end of the first elastic member (602), the first resistance rod (603) is slidably sleeved in the middle of the first conductive plate (604), and the first A first telescopic sleeve (605) is fixedly mounted on the right side of the conductive plate (604), the first telescopic sleeve (605) is slidably sleeved on the middle part of the first mounting shell (601), the right side of the inner cavity of the first telescopic sleeve (605) is threadedly connected to a first inner and outer screw sleeve (606), the right side of the inner cavity of the first inner and outer screw sleeve (606) is slidably sleeved to a first ring sleeve (607), the left side of the inner cavity of the first inner and outer screw sleeve (606) is threadedly connected to a first stud (608), and a cone block (609) is fixedly mounted on a side of the first mounting shell (601) away from the second detection mechanism (7).

6. The automatic tensile strength testing machine for wires and cables according to claim 5, characterized in that: The second detection mechanism (7) comprises a second mounting shell (701), the second mounting shell (701) being fixedly mounted on the middle portion of the connecting plate (403) away from the mounting shaft (401), a second elastic member (702) being fixedly mounted on the left side of the inner cavity of the second mounting shell (701), a second resistance rod (703) being fixedly mounted on the middle portion of the left side of the inner cavity of the second mounting shell (701), a second conductive plate (704) being fixedly mounted on the right end of the second elastic member (702), and the second resistance rod (703) being slidably mounted on the inner cavity of the second mounting shell (701). The second conductive plate (704) is movably sleeved in the middle of the second conductive plate (704), a second telescopic sleeve (705) is fixedly installed on the right side of the second conductive plate (704), the second telescopic sleeve (705) is slidably sleeved in the middle of the second mounting shell (701), the right side of the inner cavity of the second telescopic sleeve (705) is threadedly connected to the second inner and outer screw sleeves (706), the right side of the inner cavity of the second inner and outer screw sleeves (706) is slidably sleeved to the second ring sleeve (707), and the left side of the inner cavity of the second ring sleeve (707) is threadedly connected to the second stud (708).

7. The automatic tensile strength testing machine for electric wires and cables according to claim 6, characterized in that: The hydraulic seat (501), the second hydraulic rod (502), the sleeve block (503) and the pressing shaft (504) are all symmetrically arranged, and the pressing shaft (504) is made of a hard material.

8. The automatic tensile strength testing machine for electric wires and cables according to claim 7, characterized in that: An existing resistance detection circuit is provided between one end of the first resistance rod (603) and one side of the first conductive plate (604), and the contact surface between the first telescopic sleeve (605) and the first mounting shell (601) is a smooth surface.

9. The automatic tensile strength testing machine for electric wires and cables according to claim 8, characterized in that: A rough coating is provided on a side surface of the first stud (608) adjacent to the first ring sleeve (607), and the first elastic member (602), the first telescopic sleeve (605) and the first stud (608) are all made of insulating material.

10. The automatic tensile strength testing machine for electric wires and cables according to claim 9, characterized in that: The elastic force of the second elastic member (702) is greater than twice the sum of the elastic forces of the four first elastic members (602); an existing resistance detection circuit is provided between one end of the second resistance rod (703) and one side of the second conductive plate (704); and the second mounting shell (701), the second elastic member (702), the second telescopic sleeve (705) and the second stud (708) are all made of insulating material.

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